method, which proceeds from facts either of external experience, or of consciousness. It is true that thus the ultimate origin of the latter may be traced back to the human spirit, a source which then, however, must be taken as a fundamental fact, a primary phaenomenon, underivable from anything else, with the result that the whole explanation remains simply a psychological one.

At best its connection with any general metaphysical standpoint can only be described as accessory. On the other hand, the fundamental datum, the primary phaenomenon of Ethics, so found in man's nature, could itself in its turn be accounted for and explained, if we might first treat of metaphysics, and then by the synthetic method deduce Ethics from it. This would mean, however, nothing less than the construction of a complete system, of